Electric pull-socket.



I. BARR, DECD.

THFEOUITABIE TRUST COMPANY or NEW YORK, EXECUTOR.

v ELECTRIC PULL SOCKET.

I 7 APPLICATION FILED OCT. 3| I9II- I 1,230,983' Patented June 26,1917.

gigecc; as o o; 9 15 WITII'ESSEIS porcelain r'nnnnmo mum, OF NEW Yo-aK,

Yomnor new YORK, N. Y., A

FBEDEBIC BARR, DECEASED.

N. 1.; THE EQUITABLE TRUST CORPOItATION OF NEW YORK.

COMPANY OF NEW EXECUTOR OF SAID ELECTRIC PULL-SOCKET.

Specification of Letters Patent.

Patented June 26, 1917.

Application filed October 31,1911. Serial No. 657,780.

To all whom it they concern:

Be it known that I. Fanmnno BARR, a

citizen of the United States, and resident of New York, in the county of Kings and State of New York, have invented certain new .and useful Improvements in Electric Pull ockets, of which the following is a specification.

My invention relates particularly to the construction by'"1,neans of which the parts of a switch are supported in the casing and the operating chain or cord is guided.

The parts of a pull switch arc customarily supported by a porcelain member contained in a metallic shell and a chain by means of which the switch is operated is guided at the point where it passes through the shell by means of a metallic eyelet or bell tastened' either to the shell or detachably secured to the porcelain. In this construction difficulty has been encountered in properly positioning the parts and insulating the chain so as to prevent being shocked.

It is my object to simplify the construc aim" and facilitate the assembling of the parts and also their separation and also to completely insulate the operating chain from the shell. 1

Briefly considered, the invention contemplates the use of a porcelain chain guide or In its preferred form this porcelain bclliis'intcgral' with the porcelain block Whielisupports the switch parts. ably'the switch block is formed in two parts and one-half oi the chain guide is carried by eachof the. parts.

block are suitably. secured toctherand inclosed in a two part socket shell. the chain guide or bell projecting therefrom.

Fig. 1, is a side-view of a lamp socket pull switch embodying. my invention. the shell-being shown in section.

Fig. 2, is an outside construction of Fig. 1. Fig. 3 is a plan view of the construction of Fig. 1, thecap of the shell being re.- moved and 'showin the upper part of the porcelain body orb ock. 'Fig. 4. is a plan view of the. lower of the porcelain block of Fig. 1.

Fig. 5. is a side view of the parts of the porcelain and switch members, the upper part porcelaiifi 1 being the the operator from Prefer? The two parts of the view of the entire part of the porcelain being shown separated from the lower part. Fig. 6, is a side view and partial section of a pendant switch embodying a modified form of my invention.

Fig. 7. is a fragmentary detail sectional view of another modification.

In the construction illustrated in Figs. 1

to 5 inclusive, the block which carries the switch mechanism is formed in two parts 1 and 2 of porcelain or other suitable insulatiug. material. For convenience. as is customary. these members will. be termed upper porcelain and '2 the. lower porcelain. The two parts 1 and are suitably secured togetheras for instance. by means of one or more screws such as 3. 3. In this particular construction the stationary switch contacts (not shown) are carried by the lower porcelain 2 which also carries the center lamp contact '4; and the screw socket 5 for the lamp. stationary spindle 6 is suitably carried by the lower porcelain 2 and aifordsan axis of rotation for the rotatable switch member 7 shown dotted in Fig. 5. switch member 7 is carried by a porcelain or other insulating disk 8 which is adapted to be rotated step hystcp by means of an oscillating operating ratchet lever 9 which is mounted on the spindle (i. A helical spring 10 mounted on the spindle G has one end engaging the adjustable abutmcnt l1 and the other end engaging the UFCllllltlllfl lever 9. The switch is operated manually or otherwise by means of a flexible chain or cord 12 (which is commonly termed a chain) which has its inner cud secured in a suitable manner to the os- Tnsulahug material suclr cillatinglcver- 9. as fiber as. is customarily employed in lamp and switch sockets. may he used as at 14. 15' and i6 as'dcsircd. The parts are inclosed in a shell usually of metal consisting of a body member 17 and a cap 18 'suitablysecured thereto forinstance by means of any type of fastening device or catch as indicated at l9. 19. the cap fitting over the up per edge of the ody.

'll eporcclain chain guide in the form shown in Figs. 1 to 5 inclusive is formed of two parts 20 and 21 integrally formed as parts of the upper and lower porcelains l and 2 respectively. the two parts constitut.

.ing when together aguide through which and lowlv porcelainv parts 1 and 2, t e periphery of the insulating disk 8, the vertical walls 22 and '23 of the-upper porcelain, and the inner surface of the fiber msulation 15. At the point'where the chain asses through the shell it is insulated abso utely from the shell by means of theporcelain.

guide. As it is of course .possible to use other well known materials possessing the necessary insulating and structural qualities for the integral switch base and chain guide, it will be understood that the term porcelain" used herein in a generic sense.

To facilitate the assembling of the arts in the shell, the lower part or body 0 the shell I? is formed with an open slot 25 as shown by dotted lines in Fig. 2-. It will thus be seen that when the cap' 18 is detached from the body of the shell the porcelain and switch mechanism may be readil removed by simply lifting it from the sh 1 body 17 or considered conversely, if the capl (1 fiX(l, the body of the shell maybe detached from the cap and from the porcelain and switch mechanism.

The terminals :26 and 27 for the circui tyires are pr ferably located in recesses in the upper porcelain 1 as indicated 1n Figs.

3 and 5. The upper porcelain 1 is provided with a shoulder or projection 28 which lills in the upper end of the slot 25 of .the

isj t er1neda pendant switch. A "guide member 43 is provided in t e lower part of the body 41 of the shell having a body 17 ofthe shell and thus assists in preserving the parts in their proper relative positions. The'uppcr end of the porcelain 1. may be closed in by a boss as shown at 29 inv Fig.5 so as to completely insulate the ppper end of the spindle 6 from the circuit evil-es (not shown) and the terminals 26 and 27.

In the construction shown in Fig. 7 the two parts 30 and 31 of the chain guidebell are integral with the parts 1 and 2 of the porcelain body and a thimblc or sleeve 32 is pro'\ 'ided which surrounds the parts 30 and 31 and has a flange 33 inside of the edges of the shell members 17 and 18. This may be employed when it is desired to reinforce the porcelain bell or to conceal the porcelain if for any reason that should be'desired. 1

.In the construction shown'in Fig. 6 the switch mechanism is carried by a single piece: of porcelain 40 inclosed in a shell formed of two 7 struction is designed particularly for what or'clain passage 44 for the chain 45. This guide- 43 may be made separate from the porcelain 40 .oiconstructed integrally with it if desired, :In. the form shown, th loWer part of thcporcelain 40 is provided with a guide parts 41' and 42. This conslot or passage 461501 the chain. In this construction it will be noted that the chain iS.

, from the spiritor scope of my lnvention' except so far as the claims may The limited to details which I consider of particular importance.

What I claim is 1. In a pull socket switch, a orcelain body having a porcelain guide or all integral therewith and projecting laterally therefrom and a metallic shell surrounding and inclosing the porcelain body from which the porcelain chain guide or bell projects.

2. In a pull socket switch, a two part porcelain body having switch mechanism and a two part porcelain chain guide hav ing its parts integrally connected res .tively with the two parts ofsaid porce ain body.

3. In an electric socket constriction, a block of insulating material having a recess in the outer end and a recess in the side connecting with the end recess, a circuit terminal having a base portion'in said end reccss and aflanged lug portion extending at substantially right angles into said side recess, a screw passing through said base portion end e 1nto said insulating block and securing circuit terminal to said block, a bllullllg scrcw 'screwed into said flanged lug portion in said slde recess and substantially at right angles to said securing screw and a shell inclosing said parts.

4. Ina device ofthecharacter described,

in combination, a' casing for inclosing a pull chain operated swit supporting such sw vided with an in rtion exten ing through said casing, said portion. constitutev ing a guide for the pull chain of such 'i'ncchanism.

In a device of the character described, in combination, a casing having an opening, and a divided insulating switch base therein switch hanism, .a base for jechanism and. 1'0

havinga. projection extending through; said opening, the line. of division of said base passing through?saidprojection. and the lid-.-

jaccnt faces of the latter being provided with complementarygrooves constituting a passageway for the switch.

6. In a, device of the character described, a casing havin a lateral opening, and 'a. transversely divided insulating base inclosed operating member of the ,in said casing and provided with .a radially projecting bushing extending through said opening, the line of division of and base 10 projectii'ig a base for supporting a pull chain operated.

switch mechanism and having an integral portion adapted to extend through a suitable casing, said projecting portion having an opening therethrough for the pull chain of .the switch mechanism and said opening-being flared at its outer end.

FREDERIG BARR.

Vsitnesses:

Rom. S. ALLYN, E. BRADFORD. 

